建立了一种气相色谱(GC)与单光子电离-飞行时间质谱(SPI-TOF MS)联用(GC/SPI-TOF MS)的分析方法.首先,设计了一种双层套管的传输管用于连接GC与SPI-TOF MS,实现了GC与单光子电离离子源的无缝连接.在此基础上,以n-十五烷标准品和苯/甲苯/二甲苯的标准气为对象,对电离源的重要电压参数进行了优化,得到了纯净的分子离子峰,实现了对各类有机物的快速和准确定性.最后,将该方法用于分析柴油中的挥发性与半挥发性有机物,获得了柴油组分的二维GC×SPI-TOF MS谱图.不需要复杂的谱图解析和数据处理,根据谱图中离子的质荷比(m/z)归纳了柴油的主要成分,包括脂肪烃、芳香烃和含量很低的苯并吡咯等含氮化合物;根据色谱的保留时间将柴油中的同分异构体区分开来.结果表明GC/SPI-TOF MS法是一种简单、有效的分析方法,非常适于柴油及复杂环境样品等的分析表征.
参考文献
| [1] | Hejazi L;Ebrahimi D;Guilhaus M.[J].Analytical Chemistry,200981:1450. |
| [2] | Schnelle-Kreis J;Welthagen W;Sklorz M;Zimmermann R.Application of direct thermal desorption gas chromatography and comprehensive two-dimensional gas chromatography coupled to time of flight mass spectrometry for analysis of organic compounds in ambient aerosol particles[J].Journal of separation science,200514(14):1648-1657. |
| [3] | Adahchour M;Beens J;Vreuls RJJ;Brinkman UAT.Recent developments in comprehensive two-dimensional gas chromatography (GC x GC) III. Applications for petrochemicals and organohalogens[J].TrAC: Trends in Analytical Chemistry,20067(7):726-741. |
| [4] | 杨永坛;王征.全二维气相色谱分析直馏柴油中含硫化合物[J].分析化学,2010(12):1805-1808. |
| [5] | Worton D R;Kreisberg N M;Isaacman G.[J].AEROSOL SCIENCE AND TECHNOLOGY,201246:380. |
| [6] | 童婷;张万峰;李东浩;赵锦花;常振阳;高儇博;代威;何生;朱书奎.气流吹扫-注射器微萃取-全二维气相色谱法用于原油组分的表征[J].色谱,2014(10):1144-1151. |
| [7] | 高儇博;常振阳;代威;童婷;张万峰;何生;朱书奎.全二维气相色谱在石油地质样品分析中的应用进展[J].色谱,2014(10):1058-1065. |
| [8] | Wang F C Y;Qian K N;Green L A.[J].Analytical Chemistry,200577:2777. |
| [9] | Mitschke S;Welthagen W;Zimmermann R.Comprehensive gas chromatography-time-of-flight mass spectrometry using soft and selective photoionization techniques[J].Analytical chemistry,200618(18):6364-6375. |
| [10] | Qian K;Dechert G J;Edwards K E.[J].International Journal of Mass Spectrometry,2007265:230. |
| [11] | Eschner M S;Groger T;Horvath T.[J].Analytical Chemistry,201183:3865. |
| [12] | Eschner M S;Selmani I;Groger T M.[J].Analytical Chemistry,201183:6619. |
| [13] | National Institute of Standards and Technology (NIST)[OL].http://webbook.nist.gov/chemistry/,2014-10-28. |
| [14] | Zimmermann R;Welthagen W;Groger T.Photo-ionisation mass spectrometry as detection method for gas chromatography - Optical selectivity and multidimensional comprehensive separations[J].Journal of chromatography, A: Including electrophoresis and other separation methods,20081/2(1/2):296-308. |
| [15] | Wohlfahrt S;Fischer M;Saraji-Bozorgzad M.[J].Analytical Biochemistry,2013405:7107. |
| [16] | Muhlberger F.;Wieser J.;Ulrich A.;Zimmermann R..Single photon ionization (SPI) via incoherent VUV-excimer light: Robust and compact time-of-flight mass spectrometer for on-line, real-time process gas analysis[J].Analytical chemistry,200215(15):3790-3801. |
| [17] | Geissler R;Saraji-Bozorgzad M;Groger T.[J].Analytical Chemistry,200981:6038. |
| [18] | Streibel, T;Geissler, R;Saraji-Bozorgzad, M;Sklorz, M;Kaisersberger, E;Denner, T;Zimmermann, R.Evolved gas analysis (EGA) in TG and DSC with single photon ionisation mass spectrometry (SPI-MS): molecular organic signatures from pyrolysis of soft and hard wood, coal, crude oil and ABS polymer[J].Journal of thermal analysis and calorimetry,20093(3):795-804. |
| [19] | HouKY;LiFL;Chent W D;etal.[J].ANALYST,2013138:5826. |
| [20] | HuaL;Wu Q H;Hou KY.[J].AnalChem,201183:5309. |
| [21] | Adam T;Mitschke S;Streibel T.[J].CHEMICAL RESEARCH IN TOXICOLOGY,200619:511. |
| [22] | Cool TA;Wang J;Nakajima K;Taatjes CA;McIlroy A.Photoionization cross sections for reaction intermediates in hydrocarbon combustion[J].International journal of mass spectrometry,20051/3(1/3):18-27. |
| [23] | Muhlberger F;Wieser J;Morozov A.[J].Analytical Chemistry,200577:2218. |
| [24] | Xie Y Y;Hua L;Hou K Y.[J].Analytical Chemistry,201486:7681. |
| [25] | 谢园园;花磊;侯可勇;陈平;崔华鹏;赵无垛;陈文东;李京华;李海洋.单光子电离质谱法在线分析牙膏中的香精物质[J].分析化学,2012(12):1883-1889. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%